Statistical analyses for peritoneal NKG2D ligands (MICA, MICB and ULBP-2) ratio levels in women with endometriosis and controls.

Analyses were performed both including samples with undetectable levels of NLG2D ligands (i.e. below lower limit of detection of the assay) and without these samples. Results are expressed as median (range) Values are expressed in pg/mg u. Statistical analysis was performed with the Mann-Whitney U Test. Statistical analyses for peritoneal NKG2D ligands (MICA, MICB and ULBP-2) ratio levels in women with endometriosis and controls.